The National Institue of Standards and Technology (NIST), has created created AppVet. AppVet is an open-source tool that IT groups can use to test applications for use on government networks. AppVet was designed to easily integrate with third party apps and tools (e.g. antivirus software, analyzers, vulnerability repositories, etc.) through simple APIs.
Amazon has released an Appstore Sales Reporting API that allows developers to download sales reports programmatically. Developers use the API to retrieve monthly sales data as compressed CSV files. The CSV file contains item information such as marketplace, invoice ID, item name, and sales price.
Microsoft uses docs.microsoft.com as its single repository for all API docs, reference material, code samples, and other developer resources. Microsoft has updated the repository with two new features (REST API Browser and Try It) to help developers easily find relevant APIs test APIs.